RI60 Geochemistry of the Mafic Rocks, Delaware Piedmont and Adjacent Pennsylvania and Maryland: Confirmation of Arc Affinity |
Plank, M.O., Srogi, L., Schenck, W.S., Plank, T.A. |
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RI59 Bedrock Geology of the Piedmont of Delaware and Adjacent Pennsylvania |
Plank, M.O., Schenck, W.S., Srogi, L. |
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GM10 Bedrock Geologic Map of the Piedmont of Delaware and Adjacent Pennsylvania |
Schenck, W.S., Plank, M.O., Srogi, L. |
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OFR21 A Guide to Fossil Sharks, Skates, and Rays from the Chesapeake and Delaware Canal Area, Delaware |
Lauginiger, E.M., Hartstein, E.F. |
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